A team has finished a game with 3-7-9 runs-hits-errors line 2 times since 1897, most recently Boston Braves on 21 April 1916. That is about one every 221,502 team-games.
Box score for the most recent one ↗
3-7-3 3-7-2 3-7-5 3-7-0 3-7-4 3-7-8 3-7-9 3-7-6 3-7-10 3-7-7 3-8-0 3-8-1 3-8-6
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes